Profile: Shawn Tolleson received another major league opportunity on a depleted Rangers’ squad last year, and the right-hander shined. Tolleson’s 2.76 ERA wasn’t exactly backed up by the 27-year-old’s underlying numbers, but those suggest he’s at least worthy of a big league roster spot. He always had great strikeout numbers in the minors -- and so far as a pro, he’s struck out 108 batters in less than 110 innings of work -- but as a fastball/slider pitcher who sits in the low 90s, Tolleson isn’t a great candidate to pitch in the late innings due to likely troubles against left-handed hitters. Tolleson recorded just seven holds in 64 appearances last year, and there’s no reason to think he’ll be able to pick up any more this year. Steer clear of Tolleson in all formats. (Zach Sanders)

The Quick Opinion: Tolleson got a second big league opportunity last year and pitched well, even if his underlying numbers suggest he won’t be as successful this year. Tolleson isn’t in line for saves or even many holds, so steer clear in all formats.

Profile: Tolleson was a different pitcher in 2015 than he had been previously. He posted a career high strikeout rate and a career low walk rate (an unsurprisingly good combination), a career high ground ball rate and career low fly ball rate, which helped to control his unimpressive (and career high -- though only barely) home run per fly ball rate. He increased the speed on his fastball to 92.9 mph, after 91.9 in 2014, and more than doubled the use of his changeup, reducing reliance on his heater. He was in the zone slightly less, but hitters were off-balance, swinging at a higher percentage of pitchers outside the zone and a lower percentage inside the zone. And, of course, for fantasy owners, his role changed in a major way. Tolleson had nine career holds entering 2015; by the end of the year he had six more holds and the first 35 saves of his career. Now he enters 2016 with a closing job, but the Rangers have a suddenly deep bullpen, so the leash may be short. Watch the fastball velocity and usage -- if the changes from 2015 don't stick and the results turn sour, you'll want to jump ship. If they do, Tolleson still won't be Aroldis Chapman, Craig Kimbrel or Kenley Jansen, but he could be in that next tier. (Chad Young)

The Quick Opinion: Tolleson's improved results are backed by improved peripherals and meaningful changes in his pitch selection and the impact of those pitches. As long as those changes stick, he's a solid closing option in all formats.